Android(安卓)获得View截屏最优方案

Android 获得View截屏最优方案

/** * 获得View的截屏 Bitmap * * @param view * @return */public static Bitmap getMagicDrawingCache(Context context,View view,boolean quick_cache) {         Bitmap bitmap = (Bitmap) view.getTag(R.id.cacheBitmapKey);    Boolean dirty = (Boolean) view.getTag(R.id.cacheBitmapDirtyKey);    if (view.getWidth() + view.getHeight() == 0) {             view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));        view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());    }    int viewWidth = view.getWidth();    int viewHeight = view.getHeight();    if (bitmap == null || bitmap.getWidth() != viewWidth || bitmap.getHeight() != viewHeight) {             if (bitmap != null && !bitmap.isRecycled()) {                 bitmap.recycle();        }        bitmap = Bitmap.createBitmap(viewWidth, viewHeight, Bitmap.Config.ARGB_8888);        view.setTag(R.id.cacheBitmapKey, bitmap);        dirty = true;    }    if (dirty == true || !quick_cache) {             bitmap.eraseColor(context.getResources().getColor(android.R.color.transparent));        Canvas canvas = new Canvas(bitmap);        view.draw(canvas);        view.setTag(R.id.cacheBitmapDirtyKey, false);    }    return bitmap;}

xml资源需要添加id

<item type="id" name="cacheBitmapKey"/>    <item type="id" name="cacheBitmapDirtyKey"/>

Android 获得View截屏最优方案

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